To change the pixel size of an image on your iPhone, you can follow these steps:
1. Open the Photos app on your iPhone.
2. Find the image you want to resize and tap on it to open it.
3. Tap on the “Edit” button at the top right corner of the screen.
4. Once in the editing mode, tap on the crop tool icon, which looks like a square overlapping two lines, at the bottom of the screen.
5. In the crop menu, you will see three options: Original, Freeform, and Square.
– The “Original” option allows you to keep the image’s original dimensions. If you choose this option, you won’t be able to change the pixel size.
– The “Freeform” option allows you to manually adjust the crop box by dragging the corners or edges. This gives you the flexibility to resize the image to your desired dimensions.
– The “Square” option crops the image into a perfect square shape.
6. If you want to resize the image to a specific pixel size, you can select the “Freeform” option and then drag the corners or edges of the crop box until you achieve the desired size. As you adjust the crop box, the pixel dimensions will be displayed at the bottom of the screen.
7. Once you have set the desired pixel dimensions, tap on the “Done” button at the bottom right corner of the screen.
8. After tapping “Done,” you will be taken back to the editing screen. Tap on the “Done” button again to save the resized image.
Please note that the Photos app on iPhone does not provide an option to directly change the resolution or pixel density of an image. To change the resolution, you might need to use a third-party app like “Image Size” from the App Store.
Using a third-party app like “Image Size” will allow you to specify the exact pixel dimensions you want for your image. These apps typically offer more advanced editing options and give you greater control over the resizing process.
I hope this helps! If you have any further questions, feel free to ask.